Cathode Follower

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cathode follower [′kath‚ōd ‚fäl·ə·wər]

(electronics)

A vacuum-tube circuit in which the input signal is applied between the control grid and ground, and the load is connected between the cathode and ground. Also known as grounded-anode amplifier; grounded-plate amplifier.

Cathode Follower

an amplifier of electric power inwhich, as a result of strong negative feedback, the output voltageacross the load in the cathode circuit of an electron tube isapproximately equal to the voltage at the input (it follows thevoltage).

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